/* 
 * Copyright (C) 2015 Bruce Beisel
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package com.bdb.weather.filereader;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;

public class FileTruncater
{
    public static final void main(String[] args)
    {
        try
        {
            File srcFile = new File("src/test/resources/LargeHistory.dat");
            File destFile = new File("src/test/resources/tmp.dat");
            int numRecs = 5;

            FileInputStream fr = new FileInputStream(srcFile);
            FileOutputStream fw = new FileOutputStream(destFile);
            byte buffer[] = new byte[56];
            
            for (int i = 0; i < numRecs; i++)
            {
                fr.read(buffer);
                fw.write(buffer);
            }
            
            fw.close();
            fr.close();
        }
        catch (Exception e)
        {
            e.printStackTrace();
        }
    }
}
